From ac103f15a7cead429a7b2ee1f75d67cc988ec81d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Andr=C3=A9=20P=C3=B6nitz?= <poenitz@gmx.net>
Date: Thu, 14 Nov 2002 07:48:34 +0000
Subject: [PATCH] another safety belt

git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@5632 a592a061-630c-0410-9148-cb99ea01b6c8
---
 src/mathed/formulabase.C | 4 ++++
 src/mathed/formulabase.h | 3 +++
 2 files changed, 7 insertions(+)

diff --git a/src/mathed/formulabase.C b/src/mathed/formulabase.C
index 4061d23a88..3d9764da34 100644
--- a/src/mathed/formulabase.C
+++ b/src/mathed/formulabase.C
@@ -233,6 +233,10 @@ void InsetFormulaBase::getCursorPos(BufferView *, int & x, int & y) const
 
 void InsetFormulaBase::toggleInsetCursor(BufferView * bv)
 {
+	if (!mathcursor) {
+		lyxerr << "toggleInsetCursor impossible\n";
+		return;
+	}
 	//lyxerr << "toggleInsetCursor: " << isCursorVisible() << "\n";
 	if (isCursorVisible())
 		hideInsetCursor(bv);
diff --git a/src/mathed/formulabase.h b/src/mathed/formulabase.h
index 0aeef469a6..5d8e81474f 100644
--- a/src/mathed/formulabase.h
+++ b/src/mathed/formulabase.h
@@ -149,4 +149,7 @@ protected:
 // So do it here.
 void mathDispatch(FuncRequest const &);
 
+///
+void releaseMathCursor(BufferView * bv);
+
 #endif